Chapter 2. Understanding zone failure

For purposes of this section, we will consider a zone failure to be a failure where all OpenShift Container Platform nodes, masters and workers, in a zone are no longer communicating with the resources in the second data zone (e.g., nodes powered down). If communication between data zones is partially still working (intermittent down/up), steps should be taken by cluster, storage, network admins to sever the communication path between the data zones for recovery to succeed.